“Damn… My little sister @Madisontheaerialist is officially a teenager today. I couldn’t be more proud of her with what an amazing person she’s become.. So intelligent, so talented, so funny, so beautiful and so bad ass. Literally the coolest little sister anyone could ever have. I love you Mad.. You’ll always be my baby girl.. 💗👭 #HappyBirthdayMaddie,” she wrote.

Check out a video of the whole family, including Demi and Wilmer, singing happy birthday.